Alright, let's work through 6689 times 6920 step by step
6689 × 6920 = 6920 × (6689)
+ 6920 × 9 which equals 62280
+ 6920 × 80 resulting in 553600
+ 6920 × 600 yielding 4152000
+ 6920 × 6000 that is equal 41520000

= 46287880
